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45results about How to "Improve the mixing state" patented technology

Granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor and method

InactiveCN106745746AGood synergyRun optimization and stabilityTreatment with aerobic and anaerobic processesWater bathsSludge
The invention discloses a granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor and a method, relates to a granular sludge-based shortcut nitrification-anaerobic ammonium oxidation integrated denitrification reactor and a starting method, belongs to the technical field of biological sewage treatment and aims to solve the technical problems that nitrite nitrogen in a mixed solution reacts with ammonia nitrogen to generate nitrogen during a precipitation stage, the nitrogen is combined with floc sludge, and upward floating of the floc sludge can be caused, so that the effluent quality is deteriorated. The granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor comprises an aeration pump, a flow meter, an aeration disk, a blow-down pipe, a water inlet pipe, sampling openings, a water bath sleeve, a reaction pipe, an online monitor, a three-phase separator, an annular water outlet tank, a sawtooth-shaped end surface, a water outlet pipe, a gas outlet pipe, a water sealed exhaust pipe, a water inlet barrel and a water inlet pump. The method comprises the following steps: 1, system booting; 2, program running; 3, stable running of the reactor. By adopting the granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor disclosed by the invention, a removal rate of total nitrogen is higher than 85 percent.
Owner:HARBIN INST OF TECH

Ceramic high-efficiency air self-preheating type combustor

The invention discloses a ceramic high-efficiency air self-preheating type combustor comprising a ceramic air guide pipe, a gas pipe installed in the ceramic air guide pipe, an ignition electrode anda ceramic combustion cavity, wherein the ceramic combustion cavity is arranged at the position of an opening at the front end of the ceramic air guide pipe; the front ends of the gas pipe and the ignition electrode extend into the ceramic combustion cavity; an air-intake shell with an air inlet is sleeved outside the rear end of the ceramic air guide pipe, a ceramic heat exchanger is sleeved outside the ceramic air guide pipe, the outer surface of the ceramic heat exchanger is provided with a plurality of concave-convex small spherical surfaces or groups of concave-convex fins, a gap positioned between the inner wall of the ceramic heat exchanger and the outer wall of the ceramic air guide pipe is communicated with the air-intake shell, a ceramic smoke gas guide pipe is also sleeved outside the ceramic heat exchanger, and the rear end of the ceramic smoke gas guide pipe is provided with a smoke gas outlet. The invention has reasonable structure, little energy consumption and harmful gas exhaust during combustion and high temperature resistance and is a ceramic high-efficiency air self-preheating type combustor widely applied into a kiln.
Owner:FOSHAN KEHAO COMBUSTION EQUIP MFG

First-division up-flow combined baffle plate anaerobic hydrolysis reaction integrated device

The invention discloses a first-division up-flow combined baffle plate anaerobic hydrolysis reaction integrated device. According to the device, the first division is an up-flow anaerobic sludge blanket, which is then connected in series with multiple divisions of anaerobic baffled reactors. The first division adopts the UASB, large-ration reflux of filling material and supernatant is set, and sludge concentration of a mud water mixing zone is effectively increased. Then, resistance to impact load of the whole anaerobic hydrolysis reactor is enhanced, and the problem that a traditional ABR first-division reaction chamber has large bearing load and local loads overload is solved. During baffling process of sludge and wastewater in the ABR upward-flow and downward-flow reaction chambers, mud water mixing state is improved, and the defect that a traditional ABR upward-flow chamber has many channels and blind angles is overcome. By arranging a filling material zone in the ABR upward-flow reaction chamber, microbe enrichment effect is raised, and the anaerobic hydrolysis effect is better. By arranging a sludge collection and return system at the end of the ABR, loss of anaerobic sludge is avoided, operation is flexible, and mobility is strong. The device of the invention is suitable for promotion and application in the field of small and medium-sized wastewater treatment.
Owner:JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI

Firefighting compartment for mixing water and sand

The invention discloses a firefighting compartment for mixing water and sand. The firefighting compartment comprises a compartment body (1), a water tank (2), a high-pressure pump (8), a high-pressurewater pipe (7) and a high-pressure water gun head (6), wherein the water tank (2) is located at the front side of the compartment body (1); the high-pressure water pipe (7) is connected with the high-pressure pump (8); and the high-pressure water gun head (6) is connected with the outer end of the high-pressure water pipe (7). The firefighting compartment further comprises a sand box (3), a stirring machine (10) and a caching box (5), wherein the stirring machine (10) is located behind the water tank (2) and provided with a water and sand feeding opening; and the sand box (3) is located abovethe water and sand feeding opening, and the lower end of the sand box (3) is provided with a sand box funnel controlled by an electromagnetic switch. The water tank (2) is provided with a water pipeleading to the water and sand feeding opening. The rear side of the stirring machine (10) is connected with the caching box (5) through a pipe. The caching box (5) is connected with the high-pressurewater pipe (7) through the high-pressure pump (8). By means of the firefighting compartment, after being mixed, the water and the sand can be sprayed out for fire extinguishment; reburning is effectively prevented; and fire extinguishment is conducted rapidly and efficiently.
Owner:微普安全科技(徐州)股份有限公司

AAO-MBR sewage processing device and optimization operation method

The invention provides an AAO-MBR sewage processing device and an optimization operation method. The device mainly comprises an anaerobic tank, an anoxic tank, an aerobic tank and a membrane tank, and the anaerobic tank, the anoxic tank, the aerobic tank and the membrane tank are communicated with each other. The aerobic tank is composed of three galleries in series connection which are an aerobic tank c1, an aerobic tank c2 and an aerobic tank c3 in order. A first aeration system e1, a second aeration system e2 and a third aeration system e3 are arranged in the aerobic tank c1, the aerobic tank c2 and the aerobic tank c3 respectively and are connected with a blower through pipes and valves. Backflow systems are arranged between the membrane tank and the aerobic tank, between the aerobic tank and the anoxic tank and between the anoxic tank and the anaerobic tank respectively. The three galleries of the aerobic tank are subjected to interactive or alternative aeration on the premise that a lot of dissolved oxygen carried by backflow liquid in the membrane tank is fully utilized, operation energy consumption of an MBR technology is reduced, MBR technology energy saving consumption reduction optimization operation is achieved, and a nitrogen removal function of a traditional or present AAO-MBR technology is raised. The optimization operation method is suitable for optimization operation and control of various sewage processing technologies of an activated sludge process and MBR and has wide adaptability.
Owner:GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD

Stirring and transport device for poultry droppings

A stirring and transport device for poultry droppings (1) comprises: a first screw (9a) having a helical screw blade (8a); a second screw (9b) having a shape that is symmetrical with respect to the first screw (9a); a grooved trough (11) having a poultry droppings transport space (10) and arranged in parallel to and rotatably supporting the first screw (9a) and the second screw (9b); a wet droppings introduction port (12) connected to one end of the trough (11) and introducing wet droppings (2) recovered from poultry cages into the poultry droppings transport space (10); a dry droppings introduction port (13) provided downstream from the wet droppings introduction port (12) and introducing dry droppings (6) containing less water content than wet droppings (2) into the poultry droppings transport space (10); a poultry droppings discharge port (15) provided at the other end of the trough (11) for discharging poultry droppings from the poultry droppings transport space (10), the poultry droppings being a mixture of wet droppings (2) and dry droppings (6); and a rotation mechanism (16) for rotating the first screw (9a) and the second screw (9b) in opposing directions, thereby transporting wet droppings (2) and dry droppings (6) to the poultry droppings discharge port (15) while stirring the droppings in the poultry droppings transport space (10).
Owner:HYTEM

Intelligent atomizing nozzle and spraying control system based on high-voltage discharge

The invention discloses an intelligent atomizing nozzle and a spraying control system based on high-voltage discharge. The intelligent atomizing nozzle comprises an inner fluid passageway, an outer fluid passageway, a high-voltage electrode, two low-voltage electrodes and a high-voltage power source. The outer fluid passageway is used for introducing liquid fuel. The inner fluid passageway is usedfor introducing a gas oxidizing agent, the downstream tail end of the inner fluid passageway is shorter than the outer fluid passageway, and a retraction region is formed. The high-voltage electrodeand the two low-voltage electrodes are annular and are connected with the high-voltage power source. The high-voltage electrode is arranged in the portion, close to the tail portion, of the inner fluid passageway, and the outer wall face of the high-voltage electrode is attached to the inner wall face of the inner fluid passageway. The two low-voltage electrodes are nested in the portions, at theupstream end and the downstream end of the high-voltage electrode, of the outer wall face of the inner fluid passageway at equal intervals. The high-voltage electrode communicates with any low-voltageelectrode to form a discharge exciter. Plasma induced jet flow in two directions can be formed by the two discharge exciters. Parameters such as the atomizing angle and the diameters of atomized liquid drops can be rapidly adjusted according to the requirements, and then the atomizing effect is effectively controlled.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV

Bidirectionally-mixed horizontal shaft stirring machine and stirring method thereof

The invention belongs to the field of stirring machinery, and particularly relates to a bidirectionally-mixed horizontal shaft stirring machine. The bidirectionally-mixed horizontal shaft stirring machine disclosed by the invention comprises a driving mechanism, a stirring mechanism and a barrel body, and is characterized in that the driving mechanism comprises a motor and a speed reducer connected with the motor; the stirring mechanism comprises a main shaft connected with the speed reducer of the driving mechanism and a first helical tape and a second helical tape which are arranged on the main shaft; the first helical tape extends from the first end of the barrel body to the middle part of the barrel body; the second helical tape extends from the second end of the barrel body to the middle part of the barrel body; end plates for mounting the driving mechanism are arranged at two ends of the barrel body, and a machine cover is arranged at the upper part of the barrel body; a charging hole for feeding and a ventilation hole for adjusting the air pressure inside the barrel body are formed in the machine cover; a discharge hole with a switching mechanism is formed in the middle part of the bottom of the barrel body. The horizontal shaft stirring machine has the characteristics of reasonable structure and good stirring effect.
Owner:FUJIAN XINDA MACHINERY

Lithium titanate anode material for lithium ion batteries and preparation method thereof

The invention relates to a lithium titanate anode material for lithium ion batteries and a preparation method thereof. The anode material takes a lithium source, a titanium source and a carbon source as raw materials, wherein the mole ratio of Li to Ti is 4.0-4.3:5; and the doping amount of the carbon source is 1 to 30 percent based on the total mass of the lithium source and the titanium source.The preparation method comprises the following steps of: 1) weighing the lithium source, the titanium source and the carbon source according to the mole ratio and the mass ratio respectively; 2) dissolving the lithium source and the carbon source into a solvent, dissolving the titanium source into the same solvent, adding the solution of titanium source into the solution of lithium source and carbon source, and performing stirring and ultrasonic mixing; 3) adding ammonia water, controlling the pH value of the mixed solution, performing stirring and heating to volatilize the solvent and the ammonia water to form viscous jelly, and performing vacuum heating and oven-drying to obtain a precursor dried gel; 4) under the protection of an inert gas, heating and roasting the precursor dried gel,cooling the precursor dried gel to room temperature, and then crushing and grinding the precursor dried gel; 5) performing mould-pressing to obtain a module; and 6) under the protection of the inert gas, heating and roasting the module again, cooling the module to the room temperature, and then performing crushing, grinding, sieving and oven-drying to obtain the lithium titanate anode material for the lithium ion batteries.
Owner:耿世达

Ceramic high-efficiency air self-preheating type combustor

The invention discloses a ceramic high-efficiency air self-preheating type combustor comprising a ceramic air guide pipe, a gas pipe installed in the ceramic air guide pipe, an ignition electrode and a ceramic combustion cavity, wherein the ceramic combustion cavity is arranged at the position of an opening at the front end of the ceramic air guide pipe; the front ends of the gas pipe and the ignition electrode extend into the ceramic combustion cavity; an air-intake shell with an air inlet is sleeved outside the rear end of the ceramic air guide pipe, a ceramic heat exchanger is sleeved outside the ceramic air guide pipe, the outer surface of the ceramic heat exchanger is provided with a plurality of concave-convex small spherical surfaces or groups of concave-convex fins, a gap positioned between the inner wall of the ceramic heat exchanger and the outer wall of the ceramic air guide pipe is communicated with the air-intake shell, a ceramic smoke gas guide pipe is also sleeved outside the ceramic heat exchanger, and the rear end of the ceramic smoke gas guide pipe is provided with a smoke gas outlet. The invention has reasonable structure, little energy consumption and harmful gas exhaust during combustion and high temperature resistance and is a ceramic high-efficiency air self-preheating type combustor widely applied into a kiln.
Owner:FOSHAN KEHAO COMBUSTION EQUIP MFG

Method for producing organic fertilizer by utilizing black termitomyces albuminosus fungus chaff

The invention relates to the technical field of organic fertilizer production, and discloses a method for producing an organic fertilizer by using termitomyces albuminosus fungus chaff, which comprises the following steps: collecting picked termitomyces albuminosus fungus chaff columns, crushing agglomerated termitomyces albuminosus fungus chaff by using a crushing device after collection, screening the crushed fungus chaff, removing fungus chaff blocks which cannot be completely crushed, and drying the fungus chaff blocks to obtain the organic fertilizer. And then drying the screened mushroom bran to remove a proper amount of water in the mushroom bran so as to obtain the mushroom bran meeting the conditions. According to the method for producing the organic fertilizer from the termitomyces albuminosus mushroom residues, the mushroom residues and the animal waste are dried and then mixed, the mixing effect of the mixture is improved, then a proper amount of warm water is added, standing is conducted, the mixing state and effect of the mixture are further improved, and finally the mixture enters a fermentation chamber to be fermented. By adding the fermentation liquid and fully stirring the fermentation product, the fermentation efficiency of the fermentation product in the fermentation chamber is improved, and the fermentation time of the fermentation product is shortened.
Owner:ZHONGSHAN FLASHLIGHT POLYTECHNIC
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